NEC 78K0 User Manual page 161

TI51/TO51/P33/INTP4
f
X
f /2
X
4
f /2
X
6
f /2
X
8
f /2
X
12
f /2
X
TCL512 TCL511 TCL510
Timer clock selection
register 51 (TCL51)
Notes 1. Timer output F/F
2. PWM output F/F
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51
Figure 7-2. Block Diagram of 8-Bit Timer/Event Counter 51
8-bit timer compare
register 51 (CR51)
Match
8-bit timer
OVF
counter 51 (TM51)
Clear
3
Selector
TCE51 TMC516 LVS51 LVR51 TMC511 TOE51
8-bit timer mode control
register 51 (TMC51)
User's Manual U16227EJ2V0UD
Internal bus
Selector INTTM51
Note 1
S
Q
INV
R
Note 2
S
Invert
level
R
Internal bus
TO51/TI51/
P33/INTP4
Output latch
PM33
(P33)
161